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The brake experts at ArvinMeritor offer tips to help truck maintenance professionals get the brake performance they expect.
1) Automatic Slack Adjusters: Always troubleshoot brakes when the air chamber stroke exceeds the allowable limits. When you need to replace one automatic slack adjuster, replace all the ASAs on the same axle with components that meet the original spec. Mismatched brands can result in uneven brake wear, unbalanced braking and poor brake performance. Excessive push rod stroke may be an indication that a problem exists with the foundation brake, automatic slack adjuster, brake actuator or other system components. Confirm correct brake operation before returning the vehicle to service.
2) Cam Brakes: Replace all the springs, anchor pins, bushings and rollers. This...